Armor Pen to Lethality Update

I haven't checked other champs who previously had armor pen built into their kit but I recently played Darius and I noticed his E still gives him passive armor penetration. I was just wondering if the wording just needs to be updated on it for lethality since the patch update. (And possibly other champs? I'm not sure if any others have that in their kit.) But ya not much of a bug unless the coding is still armor pen and obviously I don't that. Hope this helps and that it's just a wording update.